venv/share/jupyter/lab/schemas/@jupyterlab/tooltip-extension/files.json

{
  "title": "File Editor Tooltips",
  "description": "File editor tooltip settings.",
  "jupyter.lab.shortcuts": [
    {
      "command": "tooltip:launch-file",
      "keys": ["Shift Tab"],
      "selector": ".jp-FileEditor .jp-CodeMirrorEditor:not(.jp-mod-has-primary-selection):not(.jp-mod-in-leading-whitespace)"
    }
  ],
  "properties": {},
  "additionalProperties": false,
  "type": "object"
}